Reply to Problem with Technics RP-DH1200 Headphones

Approximately 6 months ago I bought a set of Technics RP-DH1200 headphones. I've only used them to DJ from my S4, killing time at the airport and listening to productions through my PC.

I'm not getting large amounts of distortion in the left can. Not so much with the low end stuff, but the high-end sounds are almost consistently white noise.

Does anyone out there have any experience with this problem? Is it something I've done or is it a known issue with these headphones.

More importantly, how can I fix it!

Thanks for your help guys!